C16.9 – Malignant neoplasm of stomach, unspecified
ICD-10-CM 2027 diagnosis code · Malignant neoplasms of digestive organs
ICD-10-CM code
C16.9
- Code
C16.9(claims format:C169)- Description
- Malignant neoplasm of stomach, unspecified
- Billable
- Yes – valid for HIPAA-covered transactions
- Valid for
- Dates of service October 1, 2026 – September 30, 2027 (FY2027)
- Chapter
- 2. Neoplasms (C00-D49)
- Block
- C15-C26 Malignant neoplasms of digestive organs
- Parent codes
- C16
Notes for C16.9
Applicable to:
- Gastric cancer NOS
Notes inherited from parent codes
Instructional notes at a category or block level apply to every code below it.
C16 – Malignant neoplasm of stomach
Excludes2 (not included here):
- malignant carcinoid tumor of the stomach (C7A.092)
Use additional code:
- code to identify:
- alcohol abuse and dependence (F10.-)
Block C15-C26
Excludes1 (not coded here):
- Kaposi's sarcoma of gastrointestinal sites (C46.4)
Excludes2 (not included here):
- gastrointestinal stromal tumors (C49.A-)
Index terms for C16.9
Entries in the ICD-10-CM alphabetic index that lead to this code:
Related codes in C16
- C16.0 – Malignant neoplasm of cardiaBillable
- C16.1 – Malignant neoplasm of fundus of stomachBillable
- C16.2 – Malignant neoplasm of body of stomachBillable
- C16.3 – Malignant neoplasm of pyloric antrumBillable
- C16.4 – Malignant neoplasm of pylorusBillable
- C16.5 – Malignant neoplasm of lesser curvature of stomach, unspecifiedBillable
- C16.6 – Malignant neoplasm of greater curvature of stomach, unspecifiedBillable
- C16.8 – Malignant neoplasm of overlapping sites of stomachBillable
Frequently asked questions
What is ICD-10 code C16.9?
C16.9 is the ICD-10-CM code for malignant neoplasm of stomach, unspecified, in the block C15-C26 (Malignant neoplasms of digestive organs).
Is C16.9 a billable code?
Yes. C16.9 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.
What category does C16.9 belong to?
It belongs to category C16 – Malignant neoplasm of stomach.
Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.